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https://dev.mysql.com/doc/refman/9.7/en/server-system-variables.html
insert_id The value to be used by the following INSERT or ALTER TABLE statement when inserting an AUTO_INCREMENT value. If no AUTO_INCREMENT value was successfully inserted, the SELECT statement returns no row. The behavior of retrieving an ... The ...
https://dev.mysql.com/doc/refman/9.7/en/sys-schema-auto-increment-columns.html
This view indicates which tables have AUTO_INCREMENT columns and provides information about those columns, such as the current and maximum column values and the usage ratio (ratio of used to possible values). The schema_auto_increment_columns view ...By default, rows are sorted by descending usage ratio and maximum column ...
https://dev.mysql.com/doc/refman/9.7/en/archive-storage-engine.html
The AUTO_INCREMENT column can have either a unique or nonunique index. The ARCHIVE engine also supports the AUTO_INCREMENT table option in CREATE TABLE statements to specify the initial sequence value for a new table or reset the sequence value for ... The ARCHIVE storage engine produces special-purpose tables that store large amounts of unindexed data in a very small ...
https://dev.mysql.com/doc/refman/9.7/en/date-and-time-literals.html
Standard SQL and ODBC Date and Time Literals String and Numeric Literals in Date and Time Context Date and time values can be represented in several formats, such as quoted strings or as numbers, depending on the exact type of the value and other ...
https://dev.mysql.com/doc/refman/9.7/en/innodb-locks-set.html
InnoDB sets an exclusive lock on the end of the index associated with the AUTO_INCREMENT column while initializing a previously specified AUTO_INCREMENT column on a table. InnoDB fetches the value of a previously initialized AUTO_INCREMENT column ...
https://dev.mysql.com/doc/refman/9.7/en/mysql-cluster-online-operations.html
row *************************** Table: t1 Create Table: CREATE TABLE `t2` ( `c1` int(11) NOT NULL AUTO_INCREMENT, `c2` int(11) DEFAULT NULL, `c3` int(11) DEFAULT NULL, PRIMARY KEY (`c1`) ) ENGINE=ndbcluster DEFAULT CHARSET=utf8mb4 ... MySQL NDB ...
https://dev.mysql.com/doc/refman/9.7/en/using-innodb-tables.html
CREATE TABLE t5 (id INT AUTO_INCREMENT, b CHAR (20), PRIMARY KEY (id)); # The primary key can consist of more than one column. CREATE TABLE t6 (id INT AUTO_INCREMENT, a INT, b CHAR (20), PRIMARY KEY (id,a)); For more information about auto-increment ... InnoDB tables are created using the CREATE TABLE statement; for example: CREATE TABLE t1 (a INT, b CHAR (20), PRIMARY KEY (a)) ENGINE=InnoDB; The ENGINE=InnoDB clause is not required when InnoDB is defined as the default storage engine, which it is by ...
https://dev.mysql.com/doc/refman/9.7/en/ansi-diff-foreign-keys.html
For example, if you define a RESTRICT type constraint, and there is a child row with several parent rows, InnoDB does not permit the deletion of any of the parent rows. This means that you cannot use self-referential ON UPDATE CASCADE or ON UPDATE ...
https://dev.mysql.com/doc/refman/9.7/en/comparison-operators.html
If no AUTO_INCREMENT value was successfully inserted, the SELECT statement returns no row. The behavior of retrieving an AUTO_INCREMENT value by using an IS NULL comparison can be disabled by setting sql_auto_is_null = 0. Table 14.4 Comparison ...
https://dev.mysql.com/doc/refman/9.7/en/create-table-gipks.html
MySQL 9.7 supports generated invisible primary keys for any InnoDB table that is created without an explicit primary key. When the sql_generate_invisible_primary_key server system variable is set to ON, the MySQL server automatically adds a ...